With this option enabled, ffdshow will skip the H.264 deblocking filter and try to boost the performance. Deblocking is skipped only if the frame is not referenced by other frames. Skipping the deblocking filter can decrease the video quality though.

Impersonates a SW decoder. Copies output frames to system memory. SW players or the host DirectShow filter (ffdshow) are not aware that HW acceleration is used. Users can keep their favorite playback setups.

A 2nd generation Core processor (codename “Sandy Bridge”) or newer. Older platforms may work but are not officially supported. Older platforms will see a lower benefit from this decoder due to lower performing HW.

Processor graphics (iGPU) must be enabled (BIOS, device manager) and the latest driver is installed.

Can ffdshow output other color spaces than NV12?
HW Decoder only outputs NV12, but ffdshow converts the output to what was agreed with the downstream filter. For optimal performance, enable NV12 output.

Can ffdshow resize?
Yes. ffdshow can perform all of it's post processing as long as they work well with NV12 input. No known issues/problems.

Which profiles are supported?
H.264 up to and including high profile. MPEG-2 - all except the 4:2:2 profile. VC-1 - advanced profile in HW, MP&SP in SW. Future HW will support more video formats.

Can the decoder output 10/12 bit?
No. Only 8-bit 4:2:0 output is currently supported. This may change in the future.

Is Windows Media Center supported?
WMC has a unique video playback architecture. Some use cases are enabled. This is a work in progress. A single GPU setup works fine.